@article{NUMA_1972__19_132143,
     author = {D. Gaier},
     title = {Ermittlung des konformen {Moduls} von {Vierecken} mit {Differenzenmethoden.}},
     journal = {Numerische Mathematik},
     pages = {179--194},
     publisher = {mathdoc},
     volume = {19},
     year = {1972},
     zbl = {0221.65053},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1972__19_132143/}
}